1/*
2 * Oracle
3 */
4#ifdef HAVE_CONFIG_H
5#include "config.h"
6#endif
7
8#include <tcpdump-stdinc.h>
9
10#include <stdio.h>
11#include <pcap.h>
12
13#include "netdissect.h"
14#include "interface.h"
15#include "extract.h"
16#include "ppi.h"
17
18#ifdef DLT_PPI
19
20static inline void
21ppi_header_print(struct netdissect_options *ndo, const u_char *bp, u_int length)
22{
23	const ppi_header_t *hdr;
24	u_int32_t dlt;
25	u_int16_t len;
26
27	hdr = (const ppi_header_t *)bp;
28
29	len = EXTRACT_16BITS(&hdr->ppi_len);
30	dlt = EXTRACT_32BITS(&hdr->ppi_dlt);
31
32	if (!ndo->ndo_qflag) {
33		ND_PRINT((ndo,", V.%d DLT %s (%d) len %d", hdr->ppi_ver,
34			  pcap_datalink_val_to_name(dlt), dlt,
35                          len));
36        } else {
37		ND_PRINT((ndo,", %s", pcap_datalink_val_to_name(dlt)));
38        }
39
40	ND_PRINT((ndo, ", length %u: ", length));
41}
42
43static void
44ppi_print(struct netdissect_options *ndo,
45               const struct pcap_pkthdr *h, const u_char *p)
46{
47	if_ndo_printer ndo_printer;
48        if_printer printer;
49	ppi_header_t *hdr;
50	u_int caplen = h->caplen;
51	u_int length = h->len;
52	u_int32_t dlt;
53
54	if (caplen < sizeof(ppi_header_t)) {
55		ND_PRINT((ndo, "[|ppi]"));
56		return;
57	}
58	hdr = (ppi_header_t *)p;
59	dlt = EXTRACT_32BITS(&hdr->ppi_dlt);
60
61	if (ndo->ndo_eflag)
62		ppi_header_print(ndo, p, length);
63
64	length -= sizeof(ppi_header_t);
65	caplen -= sizeof(ppi_header_t);
66	p += sizeof(ppi_header_t);
67
68	if ((printer = lookup_printer(dlt)) != NULL) {
69		printer(h, p);
70	} else if ((ndo_printer = lookup_ndo_printer(dlt)) != NULL) {
71		ndo_printer(ndo, h, p);
72	} else {
73		if (!ndo->ndo_eflag)
74			ppi_header_print(ndo, (u_char *)hdr,
75					length + sizeof(ppi_header_t));
76
77		if (!ndo->ndo_suppress_default_print)
78			ndo->ndo_default_print(ndo, p, caplen);
79	}
80}
81
82/*
83 * This is the top level routine of the printer.  'p' points
84 * to the ether header of the packet, 'h->ts' is the timestamp,
85 * 'h->len' is the length of the packet off the wire, and 'h->caplen'
86 * is the number of bytes actually captured.
87 */
88u_int
89ppi_if_print(struct netdissect_options *ndo,
90               const struct pcap_pkthdr *h, const u_char *p)
91{
92	ppi_print(ndo, h, p);
93
94	return (sizeof(ppi_header_t));
95}
96
97/*
98 * Local Variables:
99 * c-style: whitesmith
100 * c-basic-offset: 8
101 * End:
102 */
103
104#endif /* DLT_PPI */
105